lib-nested/shell/src/pty.rs

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use {
termion::event::{Key, Event},
std::sync::Mutex,
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nested::{
core::{InnerViewPort},
terminal::{TerminalView, TerminalEvent}
}
};
pub use portable_pty::CommandBuilder;
//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
pub struct PTY {
master: Mutex<Box<dyn portable_pty::MasterPty + Send>>,
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child: Box<dyn portable_pty::Child + Send + Sync>
}
impl PTY {
pub fn new(
cmd: portable_pty::CommandBuilder,
port: InnerViewPort<dyn TerminalView>
) -> Option<Self> {
// Create a new pty
let mut pair = portable_pty::native_pty_system().openpty(portable_pty::PtySize {
rows: 25,
cols: 80,
// Not all systems support pixel_width, pixel_height,
// but it is good practice to set it to something
// that matches the size of the selected font. That
// is more complex than can be shown here in this
// brief example though!
pixel_width: 0,
pixel_height: 0,
}).unwrap();
if let Ok(child) = pair.slave.spawn_command(cmd) {
let mut reader = pair.master.try_clone_reader().unwrap();
async_std::task::spawn_blocking(
move || {
nested::terminal::ansi_parser::read_ansi_from(&mut reader, port);
});
Some(PTY {
master: Mutex::new(pair.master),
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child
})
} else {
None
}
}
pub fn get_status(&mut self) -> bool {
if let Ok(Some(status)) = self.child.try_wait() {
true
} else {
false
}
}
pub fn handle_terminal_event(&mut self, event: &TerminalEvent) {
match event {
TerminalEvent::Input(Event::Key(Key::Char(c))) => {
write!(self.master.lock().unwrap(), "{}", c);
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}
_ => {
}
}
}
}